117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as published by
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** the Free Software Foundation; either version 2.1 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sfconfig.h"
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <ctype.h>
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#include "sndfile.h"
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#include "sfendian.h"
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#include "common.h"
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#if (ENABLE_EXPERIMENTAL_CODE == 0)
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int
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new_open (SF_PRIVATE *psf)
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{ if (psf)
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return SFE_UNIMPLEMENTED ;
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return (psf && 0) ;
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} /* new_open */
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#else
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/*------------------------------------------------------------------------------
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** Macros to handle big/little endian issues.
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*/
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/*------------------------------------------------------------------------------
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** Typedefs.
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*/
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/*------------------------------------------------------------------------------
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** Private static functions.
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*/
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static int new_read_header (SF_PRIVATE *psf) ;
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/*------------------------------------------------------------------------------
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** Public function.
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*/
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int
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new_open (SF_PRIVATE *psf)
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{ int subformat, error = 0 ;
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if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
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return SFE_UNIMPLEMENTED ;
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if ((error = new_read_header (psf)))
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return error ;
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if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_WVE)
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return SFE_BAD_OPEN_FORMAT ;
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subformat = SF_CODEC (psf->sf.format) ;
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return error ;
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} /* new_open */
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/*------------------------------------------------------------------------------
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*/
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static int
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new_read_header (SF_PRIVATE *psf)
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{ int marker ;
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/* Set position to start of file to begin reading header. */
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psf_binheader_readf (psf, "pm", 0, &marker) ;
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if (marker != ALAW_MARKER)
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return SFE_WVE_NOT_WVE ;
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psf_binheader_readf (psf, "m", &marker) ;
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if (marker != SOUN_MARKER)
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return SFE_WVE_NOT_WVE ;
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psf_binheader_readf (psf, "m", &marker) ;
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if (marker != DFIL_MARKER)
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return SFE_WVE_NOT_WVE ;
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psf_log_printf (psf, "Read only : Psion Alaw\n"
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" Sample Rate : 8000\n"
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" Channels : 1\n"
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" Encoding : A-law\n") ;
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psf->dataoffset = 0x20 ;
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psf->datalength = psf->filelength - psf->dataoffset ;
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psf->sf.format = SF_FORMAT_WVE | SF_FORMAT_ALAW ;
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psf->sf.samplerate = 8000 ;
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psf->sf.frames = psf->datalength ;
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psf->sf.channels = 1 ;
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return alaw_init (psf) ;
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} /* new_read_header */
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/*------------------------------------------------------------------------------
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*/
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#endif
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